Create env.py

Author: Santosdevbjj

alembic/env.py

@@ -0,0 +1,46 @@
+from logging.config import fileConfig
+from sqlalchemy import pool
+from sqlalchemy.engine import Connection
+from sqlalchemy.ext.asyncio import async_engine_from_config
+from alembic import context
+import os
+import sys
+
+sys.path.append(os.path.dirname(os.path.dirname(__file__)))
+from app.core.config import settings
+from app.db.base import Base
+
+# this is the Alembic Config object
+config = context.config
+
+# Interpret the config file for Python logging.
+fileConfig(config.config_file_name)
+
+target_metadata = Base.metadata
+
+def run_migrations_offline():
+    url = settings.POSTGRES_DSN
+    context.configure(url=url, target_metadata=target_metadata, literal_binds=True)
+    with context.begin_transaction():
+        context.run_migrations()
+
+async def run_migrations_online():
+    connectable = async_engine_from_config(
+        config.get_section(config.config_ini_section), 
+        prefix="sqlalchemy.", 
+        poolclass=pool.NullPool,
+        url=settings.POSTGRES_DSN
+    )
+    async with connectable.connect() as connection:
+        await connection.run_sync(do_run_migrations)
+
+def do_run_migrations(connection: Connection):
+    context.configure(connection=connection, target_metadata=target_metadata)
+    with context.begin_transaction():
+        context.run_migrations()
+
+if context.is_offline_mode():
+    run_migrations_offline()
+else:
+    import asyncio
+    asyncio.run(run_migrations_online())